I’m unsure of a couple of squares, but overall I did good for a Saturday. The six 15-letter answers are:
17A, Carrier of fatty acids – GOODCHOLESTEROL
38A, Common restaurant offering that was Julia Child’s last meal – FRENCHONIONSOUP
59A, Name associated with spirits – EBENEZERSCROOGE
3D, Unenthusiastic response to an offer – IDONTFEELLIKEIT
7D, 1965 hit parodied by the Beatles’ “Back in the U.S.S.R.” – CALIFORNIAGIRLS
12D, Bakery item folded in half – PARKERHOUSEROLLS
It’s this last I’m not sure about. Specifically the PARKER part. The K comes from 21A, Cartoon cat with an exclamation mark in his name – EEK. And the E comes from 26A, N.B.A. All-Star Michael – REDE. So 12D could be PARLOR or something, possibly. I really have no clue on the across crossings. Also, 28D, Hamlet – EARP, and 33A, Kia model – RIA (RIO?). I don’t understand EARP, so I’m assuming it’s wrong.
Favorite answer, 1A, Bum – HEINIE.